There is no reason for the generic UnoApiTest to require Calc
specifically. Calc tests can/should instantiate a Calc instance.
We can create a CalcUnoApiTest for that that inherits from
UnoApiTest; however this does not seem necessary, "make sc.clean"
succeeds.
Anyway, the ScGlobals::ensure mentioned in the comment does not
seem to exist.
This allows us to eliminate some code duplication in tests
that were reimplementing UnoApiTest minus the Calc instantiation.
Change-Id: I37bea9df41e3960df0458fe689cf6c046a243617
see https://gerrit.libreoffice.org/#/c/3367/
and Change-Id: I00c96fa77d04b33a6f8c8cd3490dfcd9bdc9e84a for details
Change-Id: I199a75bc4042af20817265d5ef85b1134a96ff5a